Native & Naturalized Plants of the Carolinas & Georgia


3465

Forb
Perennial

Native to the Carolinas & possibly Georgia

Documented growing wild in GA NC SC

Common (uncommon in GA Mountains & Piedmont, rare in GA Coastal Plain)

Look for it in fields, woodland borders, hammocks, disturbed areas, per Weakley's Flora

map
To see a detailed map, click here

 

LEAVES:
Pinnately compound: 3 leaflets
Alternate

FLOWER:
Summer/Fall
Rose-purplish
Bilaterally symmetrical
2-lipped calyx
5-parted papilionaceous corolla
10 stamens, diadelphous, 9 and 1
Superior ovary
Flowers in terminal panicles

FRUIT:
Summer/Fall
Loment with usually 2-4 broadly rhombic to triangular segments?

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Fabales

WEAKLEY'S FLORA (6/30/18):
Desmodium perplexum   FAMILY Fabaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Desmodium perplexum   FAMILY Fabaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 098-26-023:
Desmodium perplexum   FAMILY Fabaceae

LESS THAN Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Desmodium glabellum

LESS THAN Guide to the Vascular Plants of the Blue Ridge (Wofford, 1989)
Desmodium paniculatum var. dillenii

(?) Manual of the Southeastern Flora (Small, 1933)
Meibomia dillenii

 

COMMON NAME:
Perplexing Tick-trefoil, Dillen's Tick-trefoil


Click or hover over the thumbnails to see larger pictures.

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_medi8_001_lvd

        

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190604_8972

June    Greenville County    SC

This & D. glabellum are most typical yet most difficult to separate in NC, per Vascular Plants of North Carolina.

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190604_8973

June    Greenville County    SC

Variously sunken into D. paniculatum, D. glabellum, or called D. dillenii, per Vascular Plants of North Carolina.

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190604_8974

June    Greenville County    SC

Leaflets broadly to narrowly ovate, 3-9cm, 1.5-3(3.5) as long as wide, per Leguminosae (Fabaceae), vol 3, part 2, Vascular flora of the southeastern United States (Isely, 1990).


click here to see other plants that look similar to this COMPARE Beggar's Lice (Tick-trefoil) species

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190604_8975

June    Greenville County    SC

Leaf surfaces usually moderately short-pubescent to pilose or upper glabrate, per Vascular Flora of the Carolinas.

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190618_9259

June    Greenville County    SC

Stems usually pilose (vs D. glabellum's stem pubescence typically uncinate), per Leguminosae (Fabaceae), vol 3, part 2, Vascular flora of the southeastern United States (Isely, 1990).

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190810_0629

August    Greenville County    SC

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190903_1187

September    Greenville County    SC

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190903_1188

September    Greenville County    SC

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190903_1190

September    Greenville County    SC

Corolla 6-8(9)mm long, per Leguminosae (Fabaceae), vol 3, part 2, Vascular flora of the southeastern United States (Isely, 1990).

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190905_13311332

September    Greenville County    SC

Loment densely uncinulate-puberulent, stipe 3-5mm long, per Vascular Flora of the Carolinas.

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190905_13311332b

September    Greenville County    SC

Loment of usually 2-4 broadly rhombic to triangular segments, per Vascular Flora of the Carolinas.

image of Desmodium perplexum, Perplexing Tick-trefoil, Dillen's Tick-trefoil

JK Marlow    jkm190905_1338

September    Greenville County    SC